Load Output Settings - Victron energy MPPT 150/70 Manual

The chart below indicates the absorption and float charge voltage behaviour at different temperatures. The graph displays the
temperature compensation for a 12V system and uses a -16mV/°C temperature compensation coefficient. For a 48V system
multiply by 4.
By default, the solar charger uses its internal temperature for battery temperature compensated charging. An internal temperature
reading is taken in the morning and then again when the e solar charger has been idle for at least one hour, for example when the
charger is not actively charging a battery or supplying a load.
When the solar charger is part of VE.Smart Networking and receives a battery temperature reading from a Battery Sense or a
battery monitor with a temperature sensor, the actual battery temperature will be used for temperature compensated charging
throughout the day.
Low temperature cut-off
This setting is used to prevent damage to a lithium battery by disabling charging at low temperatures.
The "Low temperature cut-off" feature is only active when the solar charger is part of a VE.Smart network and
is receiving a battery temperature reading from a Battery Sense or a battery monitor with temperature sensor.
The "low temperature cut-off" setting is by default disabled. When enabled, a low cut off temperature can be set. The default
temperature is 5°C, this is a suitable temperature setting for lithium iron phosphate (LFP) batteries. However, always check with
the lithium battery supplier to find out what this temperature should be set at.
The "low temperature cut-off" mechanism will stop battery charging when the battery temperature has dropped below the low
temperature cut-off setting. Battery charging will resume once the battery temperature has risen 0.5°C above the low temperature
cut-off setting.
Note that setting "low temperature cut-off" is not needed for Victron Lithium Smart batteries or for Victron Super Pack batteries
with serial number HQ2040 and above. This setting is only needed for lithim batteries that are unable to block charging when the
temperature drops too low.

5.2.2. Load output settings

The load output settings used to control the VE.Direct
relay or another load-shedding device. For more information, see the chapter
Page 25
MPPT solar charger manual
Temperature compensated charge graph
TX port [31] or the relay [26], enabling it to operate a BatteryProtect, a
TX port settings [31].
Configuration and settings